Binder-locking mechanism



Apr. 24, 1923.

C. R. FARGO BINDER LOCKING MEGHANISM Filedl April 9 1917 IN V EN TOR.CHARLES R. F/ RGO W l TNESSES:

Patented Apr. Z4, 1923.

UNITED STATBES rasante Param* ortica.

, CHARLES R. FARGO, OF CHICAGO, ILLINOIS, ASSIGNOR T0 WILSON-J ONESLOOSE LEAF COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BINDER-LOCKING MECHANISM.

Application led April 9, 1917. Serial No. 160,685.

To @ZZ whom t may concern.'

Be it known that I, CHARLES R. FARGO, a citizen of the United States,and a resident of the city of Chicago, in the county of Cook new anduseful Improvements in a Binder- Locking Mechanism; and I do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawings, and to thenumerals of reference marked thereon, which form .a part of thisspecification.

This invention relates to an improved form of loose leaf binder equippedwith a simple locking mechanism for the impaling posts, so constructedthat the impaling posts may be engaged through the binder withoutnecessitating manual actuation of the locking mechanisms and yet withthe locking mechanism holding said impaling posts against separationfrom the binder except by manual release of the locking mechanism.

Other and further important objects of this invention will be evidentfrom the disclosure in the drawings and specification.

The invention (in a preferred form) is illustrated in the drawings andhereinafter more fully described.

On the drawings:

Figure 1 is 'a plan view of a binder embodying the principles of myinvention.

Figure 2 is a fragmentary central hori- Zontal section taken through thelocking plate of one of the binder cover members.

Figure 3 is a sectional detail taken on line 3-3 of Figure 2, with partsin plan view.

Figure 4 is an enlarged fragmentary detail section taken on line 4-4 ofFigure 3.

Figure 5 is a detail section taken on line 5-5 of Figure- 3.

As shown on the drawings:

The reference numeral l, indicates as a whole the top cover of a looseleaf post binder, which is attached to a binder plate 2, in any suitablemanner. Said binder plate 2, as clearly shown in Figures 2 and 3, istubular, and is closed at each end by plug meinbers 3. An impaling posthole ,4, is provided in the top wall of the tubular binder plate 2, andanother impaling post hole 5, aligned therewith in the lower wall of thebinder plate, there being a pairl of such holes 4 and 5, at each end ofthe binder plate. The impaling posts for projection 'flat locking levers9. An aperture 10, is provided at one side in the outer end of each ofthev flat levers 9, and is slightly larger than the diameter oftheimpaling posts 6, in order to permit an easy movement of the impalingposts through the aperture when the plane of the aperture is at rightangles to the axis of the impaling post. Fach of said fiat levers 9, isprovided with an actuating button il, secured at one end and whichprojects through an aperture 12, provided in the top surface of thebinder plate 2. Disposed beneath one end of each of the levers 9, is acoiled compression spring 13, seated upon the interior of the tubularbinder plate 2, which operates normally to hold said button 1l, in itsoutwardly thrust position, such as shown in Figures 2 and 4, with thelever 9, swung downwardly, so that the lever binds tightly against theimpaling post 6.

The operation of the device is thought to be obvious vfrom thedescription. However, when it is desired to disengage the detachablebinder plate 2, and its cover l, from the impaling posts 6, of thebinder, it is only necessary to depress the buttons 1l, thereby swingingthe flat levers 9, from the full line position shown in Figures 2 Vand4, into the full line position shown in Figure 8, or the dotted lineposition shown in Figure 4, that is, with the plane of the apertures l0,of the respective levers 9, more nearly at right angles to the axes ofthe impaling posts 6. Due to the fact that the apertures l0, in each ofthe respective locking levers 9, are only slightly larger than theimpaling posts 6, when either one of said levers swings into an inclinedposition under the stress of is impellingspring 13, as shown in Figure4, the edges of the aperture 10, bind and grip tightly against the sidesof the impaling post 6, to pre- :plate upon the impaling posts willserve to swing the locking levers 9, Jfrom their inclined lockingposition upwardly into release position. Consequently, in placing thedetachable hinder plate upon the impaling posts to clamp the leaves ofthe hinder plate beneath the hinder plate 2, while slidah-ly engagingthe saine downwardly upon the impaling posts 6, the locking mechanismswill serve to tightly grip the impaling posts from retractive movenientwith respect thereto.

I am aware that various details of con- --struction may be variedthrough a wide range without departing from the principles of thisinvention, and I therefore do not purpose limiting the patent grantedotherwise than necessitated hy the prior art.

I claim as my invention:

l. In a temporary binder, a hollow binder plate having holes in'itswalls, impaling posts through said holes traversing said bindeivplate,sheet metal levers each having a lhole through which one of said postsgoes, pintles for said levers secured in the walls of the binder plateand crossing the same at right angles to the posts, the planes of thelsheet metal levers heilig each parallel to its pintle, and loops struckfrom the sheet metal of the levers and forming holding means forpvotally securing said levers each to its pintle.

'2. Ina temporary hinder, a hollow binder plate having holes in itswalls, an impaling post through said holes traversing said binder plate,a sheet metal lever having a l hole through which said post goes. apintle for said lever secured in the walls of the `hinder plate andcrossing the same at one side ot vand -at right angles to saidpost and a`,pivotal mounting connecting said pintle and said lever, the said holein the lever beingat one side .of a line through said. pivotal mountingalong said. lever and -at right angles to said pintle.

In testimony whereof I have hereunto vsubscribed my name in the,presence of two subscribing wvitnesses.

CHARLES R. FARGO. Vitnesses CHARLES YV. HILLS, Jr.,

EARL lVLI-IARDINE.

